3 results about "Tartronic acid" patented technology

A method for synthesizing a hydrophilic graphene-modified polyurethane foam membrane, is described. The method includes functionalizing graphene oxide particles with tartronic acid to form a functionalized product having a hydrophilic functional group; and reacting the functionalized product with a polyurethane to form the hydrophilic graphene-modified polyurethane foam membrane. The hydrophilic graphene-modified polyurethane foam membrane has a water adsorption capacity of at least 20 g / g. The hydrophilic graphene-modified polyurethane foam membrane is adapted for a use selected from the use group consisting of oil and water separation, water treatment, desalination, and pharmaceutical filtration.

The invention relates to a method for determining the addition amount of minced white gourd in white gourd sauce through tartronic acid, and belongs to the technical field of food detection. The method comprises the following steps: S1, preparing tartronic acid standard solutions with different concentrations, carrying out liquid phase determination to obtain a linear relation between the tartronic acid concentration and a liquid phase peak area, and making a standard curve; and S2, taking the white gourd sauce and the white gourd paste, adding water, stirring, dissolving, carrying out ultrasonic dispersion, squeezing out water through a filter bag, centrifuging, taking supernate, carrying out membrane filtration to prepare a sample, carrying out liquid phase detection, respectively determining the content of tartronic acid in the white gourd sauce and the content of tartronic acid in the white gourd paste, and obtaining the addition amount of the white gourd paste according to the standard curve. The tartronic acid is a stable characteristic index in the wax gourd sauce processing process, the method for representing the wax gourd content in the wax gourd sauce by measuring the content of the tartronic acid is an efficient and accurate method, the repeatability is good, and safety and reliability are achieved. The content determination method provided by the invention can save cost and reduce energy consumption, and is suitable for wide popularization and application.

The application discloses a kind of bimetallic load Ti-SBA-15 catalyst and its preparation method and application, belong to catalytic preparation technical field.The bimetallic catalyst is CoCu, the loading of CoCu is 5~25wt% of catalyst, the mass ratio of Co and Cu is 0.25~4:1;The catalyst can be successfully prepared by one-step hydrothermal synthesis-isovolume impregnation composite method, and the catalyst is obtained by impregnating and dispersing cobalt precursor and copper precursor on Ti-SBA-15 carrier;The catalyst can be applied to the reaction of selectively oxidizing glycerol to prepare tartronic acid, wherein the oxides of the two metals in the catalyst have a synergistic effect on the oxidation reaction, and the selectivity of the target product tartronic acid is higher than that of single metal, realizing efficient conversion (conversion rate >60%) of glycerol and high selectivity (selectivity >50%) of tartronic acid.